Upper Letts Lake Weather Forecast

    • 54
    • 66

    Mostly Sunny

    • 57
    • 69

    Mostly Sunny

    • 57
    • 69

    Mostly Sunny

    • 55
    • 68

    Mostly Sunny

    • 58
    • 67

    Mostly Sunny

    • 61
    • 71

    Mostly Sunny

    • 62
    • 74

    Sunny

Today 22 Jul Mountains Southwestern Shasta County to Western Colusa County

Sunny. Highs 63 to 78 higher Elevations. 79 to 85 lower Elevations. Prevailing east Winds up to 10 Mph.

Tonight 22 Jul Mountains Southwestern Shasta County to Western Colusa County

Clear. Lows 50 to 60 higher Elevations. 57 to 65 lower Elevations. Prevailing southeast Winds up to 10 Mph in the evening becoming light.

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Upper Letts Lake Temperature Statistics

July Temperature

Ukiah Municipal Airport (28.6 miles)

  • Lowest 5 July, 2025

    48.7 °F

  • Average July

    75.2 °F

  • Highest 11 July, 2025

    105.7 °F

Climate (2020–Present)

Ukiah Municipal Airport (28.6 miles)

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  • Average Low 2020–2025

    46.8 °F

  • Average 2020–2025

    60.8 °F

  • Average High 2020–2025

    76.3 °F
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